"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"

"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"

ADR-0087 exemption (no-migration-prescription): A runtime semantics change of the data context a runAs 'system' flow run hands ObjectQL when it names a user, not a metadata shape change. No spec key, enum value, export, option, config field, response field or stored shape is removed, renamed or re-shaped, so there is no tombstone and nothing for `objectstack migrate meta` to rewrite. What narrows is whose grants a runAs 'user' hook fired by such a run's write carries: the named user's own, resolved in the run's organization, instead of the member baseline, so for a user whose own grants admit less than the baseline that hook reads less. The run's own operations keep full system privileges. The other categories are closed on facts: the package publishes (not unpublished); no ADR-0087 id covers this behaviour and this diff adds none (not registered / already-registered); and the change is a behaviour change, not only an interface or type change (not runtime-interface-only / type-surface-only).